Allen-Bradley MicroLogix 1400 Instruction Manual page 165

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PWMX Idle Status (IS)
Element Description Address
IS - PWM Idle Status
The PWMX IS (Idle Status) is controlled by the PWM sub-system and
represents no PWM activity. It can be used in the control program by an
input instruction.
• Set (1) - PWM sub-system is in an idle state.
• Cleared (0) - PWM sub-system is not in an idle state (it is running).
PWMX Error Detected (ED)
Element Description
ED - PWM Error Detection
The PWMX ED (Error Detected) bit is controlled by the PWM sub-system.
It can be used by an input instruction on any rung within the control
program to detect when the PWM instruction is in an error state. If an
error state is detected, the specific error is identified in the error code
register (PWMX:0.ER).
• Set (1) - Whenever a PWM instruction is in an error state.
• Cleared (0) - Whenever a PWM instruction is not in an error state.
PWMX Normal Operation (NS)
Element Description
NS - PWM Normal Operation
The PWMX NS (Normal Operation) bit is controlled by the PWM
sub-system. It can be used by an input instruction on any rung within the
control program to detect when the PWM is in its normal state. A normal
state is defined as ACCEL, RUN, or DECEL with no PWM errors.
• Set (1) - Whenever a PWM instruction is in its normal state.
• Cleared (0) - Whenever a PWM instruction is not in its normal state.
Data Format Range
PWMX:0/IS bit 0 or 1
Address Data Range
Format
PWMX:0/ED bit 0 or 1
Address Data
Format
PWMX:0/NS bit
Publication 1766-RM001A-EN-P - October 2008
Using High-Speed Outputs
Type User Program
Access
status read only
Type User Program
Access
status read only
Range Type User Program
Access
0 or 1 status read only
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